CN203477909U - Pipeline leakage automatic monitoring positioning device based on low-frequency sound waves and negative-pressure waves - Google Patents

Pipeline leakage automatic monitoring positioning device based on low-frequency sound waves and negative-pressure waves Download PDF

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Publication number
CN203477909U
CN203477909U CN201320699426.1U CN201320699426U CN203477909U CN 203477909 U CN203477909 U CN 203477909U CN 201320699426 U CN201320699426 U CN 201320699426U CN 203477909 U CN203477909 U CN 203477909U
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collector
frequency sound
low
sound wave
wave signal
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李文杰
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Abstract

The utility model relates to a pipeline leakage automatic monitoring positioning device based on low-frequency sound waves and negative-pressure waves. The device comprises a collector, a GPS timing device, a communication network, a monitoring center and two sensor sets which are installed at the initial end and the tail end of a pipeline respectively, wherein the sensor sets detect low-frequency sound wave signals of the pipeline and negative-pressure wave signals of the pipeline, the collector conducts analog-digital conversion on the low-frequency sound wave signals and the negative-pressure wave signals of the pipeline, and the monitoring center determines whether leakage happens in the pipeline and determines the leakage point according to the low-frequency sound wave signals and the negative-pressure wave signals sent by the data collector. The device has the advantages of being high in intellectualization degree, high in detection sensitivity, high in positioning precision, low in false alarm rate and missing report rate, stable in running, small in investment, convenient to install and the like, and can be widely applied to a pipeline leakage measuring system.

Description

The automatic monitoring and positioning device of a kind of pipe leakage based on low-frequency sound wave and suction wave
Technical field
The utility model relates to detection technique, particularly relates to the automatic monitoring and positioning device of a kind of pipe leakage based on low-frequency sound wave and suction wave.
Background technique
Oil pipeline leak detection device, for positioning apart from the fluid leakage point in long distance pipeline long, to guarantee the safety and steady operation of oil and gas pipes, is avoided surrounding environment to cause large pollution.The fluid that long distance pipeline is carried can be liquid or gas.
To be " 201010297897.0 ", denomination of invention disclose the apparatus and method of the gas pipeline Leak testtion location based on routine data and voice band data for the Chinese invention patent application of " pipeline leakage positioning system and the method that detect based on suction wave and sound wave synergic " to application number, first this application for a patent for invention only limits to gas pipeline, is not suitable for other fluid line; Secondly, on-site data gathering processor is comprised of routine data puocessing module and voice band data puocessing module, and two modules form by parts independent and that disperse, have caused equipment in the poor problem of long-time running situation stability inferior; And the component of dispersion are unfavorable for field erected Rapid Implementation, cause the problem that workload cost is large simultaneously.
In sum, in prior art, there is the problem that operation stability is poor, workload cost is large in monitoring leak from oil gas pipe positioning device.
Summary of the invention
In view of this, main purpose of the present utility model is to provide a kind of pipe leakage based on low-frequency sound wave and suction wave simple and compact for structure, lower-cost automatic monitoring and positioning device.
The utility model solves the technological scheme that its technical problem adopts:
The automatic monitoring and positioning device of pipe leakage based on low-frequency sound wave and suction wave, comprising: first sensor group (4); The second sensor group (5); For the first simulation low-frequency sound wave signal that the first low-frequency sound wave sensor (41) is sent, the first simulation negative pressure wave signal that the first suction wave sensor (42) sends, be converted to respectively the first digital low-frequency sound wave signal, the first digital negative pressure wave signal, the first information that the first digital low-frequency sound wave signal, the first digital negative pressure wave signal, a GPS timing device (6) are provided gathers the first collector (2) that the reference time is sent to Surveillance center (1); For the second simulation low-frequency sound wave signal that the second low-frequency sound wave sensor (51) is sent, the second simulation negative pressure wave signal that the second suction wave sensor (52) sends, be converted to respectively the second digital low-frequency sound wave signal, the second digital negative pressure wave signal, the second information gathering reference time that the second digital low-frequency sound wave signal, the second digital negative pressure wave signal, the 2nd GPS timing device (6) are provided is sent to second collector (3) of Surveillance center (1); For the first information obtaining from external GPS is gathered to the GPS timing device (6) that the reference time is sent to the first collector (2); For being sent to the 2nd GPS timing device (7) of the second collector (3) the second information gathering reference time of obtaining from external GPS; The the second digital low-frequency sound wave signal, the second digital negative pressure wave signal that for the first digital low-frequency sound wave signal, the first digital negative pressure wave signal and the second collector (3) sending according to the first collector (2), send determine whether pipeline leaks: if leaked, the first information sending according to the first collector (2) gathers the second information gathering reference time that reference time, the second collector (3) send and determines respectively the distance of leakage point to the distance of pipeline head end, leakage point to pipeline tail end, the Surveillance center (1) that realizes leak point positioning and warning; Wherein, first sensor group (4) comprises for the first simulation low-frequency sound wave signal of the pipeline head end recording being sent to the first low-frequency sound wave sensor (41) of the first collector (2) and being sent to the first collector (2) first suction wave sensors (42) for simulating negative pressure wave signal by first of the pipeline head end recording; The second sensor group (5) comprises for the second simulation low-frequency sound wave signal of the pipeline tail end recording being sent to the second low-frequency sound wave sensor (51) of the second collector (3) and for the second simulation negative pressure wave signal of the pipeline tail end recording being sent to the second suction wave sensor (52) of the second collector (3).
First sensor group (4) output terminal connects the first collector (2) first input end, the one GPS timing device (6) output terminal connects the first collector (2) second input ends, and the first collector (2) output terminal is connected to the first input end of Surveillance center (1); The one GPS timing device (6) input end is connected to external GPS the first output terminal; The second sensor group (5) output terminal connects the second collector (3) first input end, the 2nd GPS timing device (7) output terminal connects the second collector (2) second input ends, and the second collector (2) output terminal is connected to the second input end of Surveillance center (1); The 2nd GPS timing device (7) input end is connected to external GPS the second output terminal.
In sum, the first digital low-frequency sound wave signal, the first digital negative pressure wave signal, the first information that pipeline leak detection positioning device described in the utility model adopts two cover collecting devices to gather respectively pipeline head end gather reference time and pipeline tail end the second digital low-frequency sound wave signal, the second digital negative pressure wave signal, second the information gathering reference time ,Bing You Surveillance center two-way Information Monitoring is carried out to analysing and processing to determine leakage point.In the utility model, in two-way collecting device, first sensor group, the second sensor group, the first collector, the second collector all have compact structure, concentrated feature, make the easy for installation and problem of having saved workload cost of the utility model.
Accompanying drawing explanation
Fig. 1 is the automatic monitoring and positioning device main assembly of the pipe leakage based on low-frequency sound wave and suction wave described in the utility model structural representation.
Fig. 2 is the composition structural representation of first sensor group described in the utility model.
Fig. 3 is the composition structural representation of the second sensor group described in the utility model.
Embodiment
For structure characteristic of the present utility model and effect thereof are had to further understanding, now enumerate specific embodiment and be described with reference to the accompanying drawings as follows.
Fig. 1 is the automatic monitoring and positioning device main assembly of the pipe leakage based on low-frequency sound wave and suction wave described in the utility model structural representation.As shown in Figure 1, pipe leakage positioning device described in the utility model comprises: first sensor group 4; The second sensor group 5; For the first simulation low-frequency sound wave signal that the first low-frequency sound wave sensor 41 is sent, the first simulation negative pressure wave signal that the first suction wave sensor 42 sends, be converted to respectively the first digital low-frequency sound wave signal, the first digital negative pressure wave signal, the first information that the first digital low-frequency sound wave signal, the first digital negative pressure wave signal, a GPS timing device 6 are provided gathers the first collector 2 that the reference time is sent to Surveillance center 1; For the second simulation low-frequency sound wave signal that the second low-frequency sound wave sensor 51 is sent, the second simulation negative pressure wave signal that the second suction wave sensor 52 sends, be converted to respectively the second digital low-frequency sound wave signal, the second digital negative pressure wave signal, the second information gathering reference time that the second digital low-frequency sound wave signal, the second digital negative pressure wave signal, the 2nd GPS timing device 6 are provided is sent to the second collector 3 of Surveillance center 1; For the first information obtaining from external GPS is gathered to the GPS timing device 6 that the reference time is sent to the first collector 2; For being sent to the 2nd GPS timing device 7 of the second collector 3 the second information gathering reference time of obtaining from external GPS; The the second digital low-frequency sound wave signal, the second digital negative pressure wave signal that for the first digital low-frequency sound wave signal, the first digital negative pressure wave signal and the second collector 3 sending according to the first collector 2, send determine whether pipeline leaks: if leaked, the second information gathering reference time that the first information sending according to the first collector 2 gathers the reference time, the second collector 3 sends is determined respectively the distance of leakage point to the distance of pipeline head end, leakage point to pipeline tail end, the Surveillance center 1 that realizes leak point positioning and warning; Wherein,
First sensor group 4 comprises for the first simulation low-frequency sound wave signal of the pipeline head end recording being sent to the first low-frequency sound wave sensor 41 of the first collector 2 and being sent to the first collector 2 first suction wave sensors 42 for simulating negative pressure wave signal by first of the pipeline head end recording; The second sensor group 5 comprises for the second simulation low-frequency sound wave signal of the pipeline tail end recording being sent to the second low-frequency sound wave sensor 51 of the second collector 3 and for the second simulation negative pressure wave signal of the pipeline tail end recording being sent to the second suction wave sensor 52 of the second collector 3.
First sensor group 4 output terminals connect the first collector 2 first input ends, and GPS timing device 6 output terminals connect the first collector 2 second input ends, and the first collector 2 output terminals are connected to the first input end of Surveillance center 1; The one GPS timing device 6 input ends are connected to external GPS the first output terminal; The second sensor group 5 output terminals connect the second collector 3 first input ends, and the 2nd GPS timing device 7 output terminals connect the second collector 2 second input ends, and the second collector 2 output terminals are connected to the second input end of Surveillance center 1; The 2nd GPS timing device 7 input ends are connected to external GPS the second output terminal.
In the utility model, the first collector 2, the second collector 3 are all together partly integrated by load module, output module, communication module, power module, processor etc., and the first collector 2, the second collector 3 are prior art, repeat no more herein.
In a word, the first digital low-frequency sound wave signal, the first digital negative pressure wave signal, the first information that pipeline leak detection positioning device described in the utility model adopts two cover collecting devices to gather respectively pipeline head end gather reference time and pipeline tail end the second digital low-frequency sound wave signal, the second digital negative pressure wave signal, second the information gathering reference time ,Bing You Surveillance center two-way Information Monitoring is carried out to analysing and processing to determine leakage point.In the utility model, in two-way collecting device, first sensor group, the second sensor group, the first collector, the second collector all have compact structure, concentrated feature, make the easy for installation and problem of having saved workload cost of the utility model.
Fig. 2 is the composition structural representation of first sensor group described in the utility model.As shown in Figure 2, the first sensing group 4 is installed in pipeline head end by the first Y-piece road 45; Wherein,
The first low-frequency sound wave sensor 41 is installed in first Y-piece road the first port, and the first suction wave sensor 42 is installed in the first Y-piece road 45 second ports, and the first Y-piece road 45 the 3rd port connects external pipe head end; The first Y-piece road 45 first ports, the first Y-piece road 45 second ports, the first Y-piece road 45 the 3rd port correspond respectively to the first Y-piece road 45 first pipe arm Y11, the first Y-piece road 45 second pipe arm Y12, the first Y-piece road 45 the 3rd pipe arm Y13, on the first Y-piece road 45 first pipe arm Y11, be equiped with the first gate valve 43, on the first Y-piece road 45 second pipe arm Y12, be equiped with on the second gate valve 44, the first Y-piece road 45 the 3rd pipe arm Y13 and be equiped with the 3rd gate valve 46.
Fig. 3 is the composition structural representation of the second sensor group described in the utility model.As shown in Figure 3, the second sensing group 5 is installed in pipeline tail end by the second Y-piece road 55; Wherein,
The second low-frequency sound wave sensor 51 is installed in second Y-piece road the first port, and the second suction wave sensor 52 is installed in the second Y-piece road 55 second ports, and the second Y-piece road 55 the 3rd port connects external pipe tail end; The second Y-piece road 55 first ports, the second Y-piece road 55 second ports, the second Y-piece road 55 the 3rd port correspond respectively to the second Y-piece road 45 first pipe arm Y21, the second Y-piece road 55 second pipe arm Y22, the second Y-piece road 55 the 3rd pipe arm Y23, on the second Y-piece road 55 first pipe arm Y21, be equiped with the 4th gate valve 53, on the second Y-piece road 55 second pipe arm Y22, be equiped with on the 5th gate valve 54, the second Y-piece road 55 the 3rd pipe arm Y23 and be equiped with the 3rd gate valve 56.
In practical application, between first sensor group 4 and the first collector 2, between the second sensor group 5 and the second collector 3, between a GPS timing device 6 and external GPS, between the 2nd GPS timing device 7 and external GPS, between the first collector 2 and Surveillance center 1, be all connected by fiber optic network, satellite network or Wireless microwave network between the second collector 3 and Surveillance center 1.

Claims (3)

1. the automatic monitoring and positioning device of the pipe leakage based on low-frequency sound wave and suction wave, is characterized in that, described positioning device comprises: first sensor group (4); The second sensor group (5); For the first simulation low-frequency sound wave signal that the first low-frequency sound wave sensor (41) is sent, the first simulation negative pressure wave signal that the first suction wave sensor (42) sends, be converted to respectively the first digital low-frequency sound wave signal, the first digital negative pressure wave signal, the first information that the first digital low-frequency sound wave signal, the first digital negative pressure wave signal, a GPS timing device (6) are provided gathers the first collector (2) that the reference time is sent to Surveillance center (1); For the second simulation low-frequency sound wave signal that the second low-frequency sound wave sensor (51) is sent, the second simulation negative pressure wave signal that the second suction wave sensor (52) sends, be converted to respectively the second digital low-frequency sound wave signal, the second digital negative pressure wave signal, the second information gathering reference time that the second digital low-frequency sound wave signal, the second digital negative pressure wave signal, the 2nd GPS timing device (6) are provided is sent to second collector (3) of Surveillance center (1); For the first information obtaining from external GPS is gathered to the GPS timing device (6) that the reference time is sent to the first collector (2); For being sent to the 2nd GPS timing device (7) of the second collector (3) the second information gathering reference time of obtaining from external GPS; The the second digital low-frequency sound wave signal, the second digital negative pressure wave signal that for the first digital low-frequency sound wave signal, the first digital negative pressure wave signal and the second collector (3) sending according to the first collector (2), send determine whether pipeline leaks: if leaked, the first information sending according to the first collector (2) gathers the second information gathering reference time that reference time, the second collector (3) send and determines respectively the distance of leakage point to the distance of pipeline head end, leakage point to pipeline tail end, the Surveillance center (1) that realizes leak point positioning and warning; Wherein, first sensor group (4) comprises for the first simulation low-frequency sound wave signal of the pipeline head end recording being sent to the first low-frequency sound wave sensor (41) of the first collector (2) and being sent to the first collector (2) first suction wave sensors (42) for simulating negative pressure wave signal by first of the pipeline head end recording; The second sensor group (5) comprises for the second simulation low-frequency sound wave signal of the pipeline tail end recording being sent to the second low-frequency sound wave sensor (51) of the second collector (3) and for the second simulation negative pressure wave signal of the pipeline tail end recording being sent to the second suction wave sensor (52) of the second collector (3);
First sensor group (4) output terminal connects the first collector (2) first input end, the one GPS timing device (6) output terminal connects the first collector (2) second input ends, and the first collector (2) output terminal is connected to the first input end of Surveillance center (1), the one GPS timing device (6) input end is connected to external GPS the first output terminal, the second sensor group (5) output terminal connects the second collector (3) first input end, the 2nd GPS timing device (7) output terminal connects the second collector (2) second input ends, and the second collector (2) output terminal is connected to the second input end of Surveillance center (1), the 2nd GPS timing device (7) input end is connected to external GPS the second output terminal, described the first sensing group (4) is installed in pipeline head end by the first Y-piece road (45), wherein, described the first low-frequency sound wave sensor (41) is installed in first Y-piece road the first port, described the first suction wave sensor (42) is installed in the first Y-piece road (45) second ports, and the first Y-piece road (45) the 3rd port connects the head end of external pipe, the first Y-piece road (45) first ports, the first Y-piece road (45) second ports, the first Y-piece road (45) the 3rd port corresponds respectively to the first Y-piece road (45) first pipe arms (Y11), the first Y-piece road (45) second pipe arms (Y12), the first Y-piece road (45) the 3rd pipe arm (Y13), on the first Y-piece road (45) first pipe arms (Y11), be equiped with the first gate valve (43), on the first Y-piece road (45) second pipe arms (Y12), be equiped with the second gate valve (44), on the first Y-piece road (45) the 3rd pipe arm (Y13), be equiped with the 3rd gate valve (46).
2. the automatic monitoring and positioning device of a kind of pipe leakage based on low-frequency sound wave and suction wave according to claim 1, is characterized in that: described the second sensing group (5) is installed in pipeline tail end by the second Y-piece road (55), wherein, described the second low-frequency sound wave sensor (51) is installed in second Y-piece road the first port, described the second suction wave sensor (52) is installed in the second Y-piece road (55) second ports, and the second Y-piece road (55) the 3rd port connects the tail end of external pipe, the second Y-piece road (55) first ports, the second Y-piece road (55) second ports, the second Y-piece road (55) the 3rd port corresponds respectively to the second Y-piece road (45) first pipe arms (Y21), the second Y-piece road (55) second pipe arms (Y22), the second Y-piece road (55) the 3rd pipe arm (Y23), on the second Y-piece road (55) first pipe arms (Y21), be equiped with the 4th gate valve (53), on the second Y-piece road (55) second pipe arms (Y22), be equiped with the 5th gate valve (54), on the second Y-piece road (55) the 3rd pipe arm (Y23), be equiped with the 3rd gate valve (56).
3. the automatic monitoring and positioning device of a kind of pipe leakage based on low-frequency sound wave and suction wave according to claim 1, it is characterized in that: between described first sensor group (4) and described the first collector (2), between described the second sensor group (5) and described the second collector (3), between a described GPS timing device (6) and external GPS, between described the 2nd GPS timing device (7) and external GPS, between described the first collector (2) and described Surveillance center (1), between described the second collector (3) and described Surveillance center (1), all pass through fiber optic network, satellite network or Wireless microwave network connect.
CN201320699426.1U 2013-11-07 2013-11-07 Pipeline leakage automatic monitoring positioning device based on low-frequency sound waves and negative-pressure waves Expired - Fee Related CN203477909U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104006299A (en) * 2014-05-16 2014-08-27 中国海洋石油总公司 Pipeline blockage monitoring system and monitoring fusing processing method thereof
CN104100840A (en) * 2014-07-09 2014-10-15 中国海洋石油总公司 Pipeline blockage monitoring system and detection method thereof for blockage signals under strong interference
CN104534282A (en) * 2014-11-20 2015-04-22 大连理工大学 Method for monitoring leakage and positioning pipeline through straining loop sensor array
CN105840987A (en) * 2016-04-25 2016-08-10 北京宏信环科科技发展有限公司 Pipeline leakage weighted positioning method and device based on pressure waves and sound waves
CN106090629A (en) * 2016-06-15 2016-11-09 中冶南方工程技术有限公司 Urban Underground piping lane water supply line leak detection system and method
CN107023755A (en) * 2017-05-16 2017-08-08 北京化工大学 Pipeline network leak monitoring and positioning method and system
CN108488638A (en) * 2018-03-28 2018-09-04 东北大学 Line leakage system and method based on sound wave suction wave hybrid monitoring
US11293831B2 (en) * 2019-11-06 2022-04-05 Windinfo Pty Ltd Gas pipeline leakage monitoring system and monitoring method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104006299A (en) * 2014-05-16 2014-08-27 中国海洋石油总公司 Pipeline blockage monitoring system and monitoring fusing processing method thereof
CN104006299B (en) * 2014-05-16 2016-08-24 中国海洋石油总公司 A kind of monitoring pipeline blocking system and monitoring method for amalgamation processing thereof
CN104100840A (en) * 2014-07-09 2014-10-15 中国海洋石油总公司 Pipeline blockage monitoring system and detection method thereof for blockage signals under strong interference
CN104100840B (en) * 2014-07-09 2016-08-17 中国海洋石油总公司 Monitoring pipeline blocking system and under strong jamming the detection method of jam signal
CN104534282A (en) * 2014-11-20 2015-04-22 大连理工大学 Method for monitoring leakage and positioning pipeline through straining loop sensor array
CN105840987A (en) * 2016-04-25 2016-08-10 北京宏信环科科技发展有限公司 Pipeline leakage weighted positioning method and device based on pressure waves and sound waves
CN105840987B (en) * 2016-04-25 2018-07-13 北京宏信环科科技发展有限公司 It is a kind of that localization method and device are weighted based on the pipe leakage of pressure wave and sound wave
CN106090629A (en) * 2016-06-15 2016-11-09 中冶南方工程技术有限公司 Urban Underground piping lane water supply line leak detection system and method
CN107023755A (en) * 2017-05-16 2017-08-08 北京化工大学 Pipeline network leak monitoring and positioning method and system
CN107023755B (en) * 2017-05-16 2019-10-18 北京化工大学 Pipeline network leak monitoring and positioning method and system
CN108488638A (en) * 2018-03-28 2018-09-04 东北大学 Line leakage system and method based on sound wave suction wave hybrid monitoring
US11293831B2 (en) * 2019-11-06 2022-04-05 Windinfo Pty Ltd Gas pipeline leakage monitoring system and monitoring method

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